Add 'Generate_csv.bat'

A script to generate a CSV list on the client.

Generate_csv.bat

@@ -0,0 +1,50 @@
+@echo off
+setlocal enabledelayedexpansion
+
+:: Output filename
+set "output_file=allowed_pcs.csv"
+
+echo [INFO] Extracting session information...
+
+:: 1. Get the Computer Name
+set "pc_name=%COMPUTERNAME%"
+
+:: 2. Get the current Username and Session ID
+:: Using 'query user' for more stable output parsing compared to qwinsta
+set "found=false"
+for /f "skip=1 tokens=1,2,3" %%i in ('query user %USERNAME%') do (
+    :: %%i = Username, %%j = SessionName or ID, %%k = ID or State
+    
+    :: Check if the 2nd column is a number (Session ID)
+    echo %%j | findstr /r "^[0-9][0-9]*$" >nul
+    if not errorlevel 1 (
+        set "user_name=%%i"
+        set "session_id=%%j"
+    ) else (
+        :: If 2nd column is SessionName (e.g., console), ID is in the 3rd column
+        set "user_name=%%i"
+        set "session_id=%%k"
+    )
+    :: Remove the ">" prefix from the username if present
+    set "user_name=!user_name:>=!"
+    set "found=true"
+)
+
+if "%found%"=="false" (
+    echo [ERROR] Could not identify active session.
+    pause
+    exit /b
+)
+
+:: 3. Prompt user for a description
+set /p desc="Enter a description for this PC (e.g. Sales-Desktop): "
+
+:: 4. Output to CSV in append mode
+:: Wrapping in parentheses to prevent accidental file redirection issues
+(echo %pc_name%,%user_name%,%session_id%,%desc%)>> "%output_file%"
+
+echo.
+echo [SUCCESS] Information added to %output_file%
+echo Data: %pc_name%,%user_name%,%session_id%,%desc%
+echo.
+pause